PHP7 MySQL无效的默认值'PDO数据库安装

最近在Ubuntu 16 x64盒子上安装了php7.0-fpm + Nginx + MySQL。

当获得一个php安装程序PDO到数据库以添加文件时，它会做以下操作:

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PDOException: SQLSTATE[42000]: Syntax error or access violation: 1067 Invalid default value for 'expiry_date' in /var/www//install/index.php:31 Stack trace: #0 /var/www//install/index.php(31): 
PDOStatement->execute(Array) #1 /var/www//install/index.php(152): try_query(Array) #2 {main}
PDOException: SQLSTATE[HY000]: General error: 1215 Cannot add foreign key constraint in /var/www//install/index.php:31 Stack trace: #0 /var/www//install/index.php(31): PDOStatement->execute(Array) #1 /var/www//install/index.php(152): try_query(Array) #2 {main}
PDOException: SQLSTATE[HY000]: General error: 1215 Cannot add foreign key constraint in /var/www//install/index.php:31 Stack trace: #0 /var/www//install/index.php(31): PDOStatement->execute(Array) #1 /var/www//install/index.php(152): try_query(Array) #2 {main}
PDOException: SQLSTATE[HY000]: General error: 1215 Cannot add foreign key constraint in /var/www//install/index.php:31 Stack trace: #0 /var/www//install/index.php(31): PDOStatement->execute(Array) #1 /var/www//install/index.php(152): try_query(Array) #2 {main}
PDOException: SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry '1' for key 'PRIMARY' in /var/www//install/index.php:31 Stack trace: #0 /var/www//install/index.php(31): PDOStatement->execute(Array) #1 /var/www//install/index.php(152): try_query(Array) #2 {main}

我在设置中错过了什么吗?它在Ubuntu 14 php5系统上运行良好。

这里有一些表插入来帮助评估:

'0' => array(
                'table' => TABLE_FILES,
                'query' => 'CREATE TABLE IF NOT EXISTS `'.TABLE_FILES.'` (
                              `id` int(11) NOT NULL AUTO_INCREMENT,
                              `url` text NOT NULL,
                              `filename` text NOT NULL,
                              `description` text NOT NULL,
                              `timestamp` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP(),
                              `uploader` varchar('.MAX_USER_CHARS.') NOT NULL,
                              `expires` INT(1) NOT NULL default ''0'',
                              `expiry_date` TIMESTAMP NOT NULL,
                              `public_allow` INT(1) NOT NULL default ''0'',
                              `public_token` varchar(32) NULL,
                              PRIMARY KEY (`id`)
                            ) ENGINE=InnoDB  DEFAULT CHARSET=utf8 COLLATE=utf8_general_ci;
                            ',
                'params' => array(),
    ),